CVE-2026-50518: Windows DHCP Server Remote Code Execution Vulnerability

Published Jul 14, 2026
·
Updated

Heap-based buffer overflow in Windows DHCP Server allows an unauthorized attacker to execute code over a network.

Other sources

Windows DHCP Server Remote Code Execution Vulnerability

— Microsoft

Affected Software

25 affected componentsFixes available
Microsoft Windows 10=1809
10.0.17763.9020
Microsoft Windows Server 2012<6.2.9200.26226
6.2.9200.26226
Microsoft Windows Server 2016<10.0.14393.9339
10.0.14393.9339
Microsoft Windows Server 2012 R2<6.3.9600.23291
6.3.9600.23291
Microsoft Windows Server 2012<6.2.9200.26226
6.2.9200.26226
Microsoft Windows Server 2016<10.0.14393.9339
10.0.14393.9339
Microsoft Windows 10=1607
10.0.14393.9339
Microsoft Windows 10=1607
10.0.14393.9339
Microsoft Windows Server 2025<10.0.26100.33158
10.0.26100.33158
Microsoft Windows Server 2012 R2<6.3.9600.23291
6.3.9600.23291
Microsoft Windows Server 2022<10.0.20348.5386
10.0.20348.5386
Microsoft Windows Server 2025<10.0.26100.33158
10.0.26100.33158
Microsoft Windows 10=1809
10.0.17763.9020
Microsoft Windows Server 2019<10.0.17763.9020
10.0.17763.9020
Microsoft Windows Server 2019<10.0.17763.9020
10.0.17763.9020
Microsoft Windows 10 1607<10.0.14393.9339
Microsoft Windows 10 1607<10.0.14393.9339
Microsoft Windows 10 1809<10.0.17763.9020
Microsoft Windows 10 1809<10.0.17763.9020
Microsoft Windows Server 2012
Microsoft Windows Server 2012=r2
Microsoft Windows Server 2016<10.0.14393.9339
Microsoft Windows Server 2019<10.0.17763.9020
Microsoft Windows Server 2022<10.0.20348.5386
Microsoft Windows Server 2025<10.0.26100.33158

Remediation

Patch Available

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50518

Event History

Jul 14, 2026
CVE Published
via Microsoft·02:00 PM
Data Sourced
via Microsoft·02:00 PM
DescriptionSeverityWeakness
Data Sourced
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Affected Software
Updated
via Microsoft·02:00 PM
Description
CVE Published
via MITRE·05:08 PM
Data Sourced
via MITRE·05:08 PM
DescriptionSeverity
Data Sourced
via NVD·06:17 PM
RemedyDescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-50518?

The severity of CVE-2026-50518 is critical with a CVSS score of 9.8.

2

How do I fix CVE-2026-50518?

To fix CVE-2026-50518, apply the latest security updates provided by Microsoft for affected Windows Server versions.

3

What is CVE-2026-50518?

CVE-2026-50518 is a heap-based buffer overflow vulnerability in Windows DHCP Server that allows unauthorized remote code execution.

4

Which versions of Windows are affected by CVE-2026-50518?

CVE-2026-50518 affects Microsoft Windows 10, Windows Server 2012, 2016, 2019, 2022, 2025, and 2012 R2.

5

What type of attack does CVE-2026-50518 enable?

CVE-2026-50518 enables an unauthorized attacker to execute arbitrary code over a network.

Company

Resources

Contact

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